Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 413

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6

BANDWIDTH.COM CLEC, LLC - MA 5

NEW CINGULAR WIRELESS PCS, LLC - DC 1

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 1

AHOI LLC 1

New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2005-01-06	413-841-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	PITTSFIELD	MA
2004-12-08	413-265-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	HOLYOKE	MA
2004-12-08	413-265-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	HOLYOKE	MA
2004-12-08	413-636-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SPRINGFLD	MA
2004-12-08	413-636-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SPRINGFLD	MA
2004-12-08	413-652-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	NORTHADAMS	MA
2004-12-08	413-658-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	AMHERST	MA
2004-12-08	413-717-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	GREATBNGTN	MA
2004-11-12	413-233-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	SPRINGFLD	MA
2004-11-04	413-454-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	WESTFIELD	MA
2004-10-25	413-429-2XXX	2000–2999	Assigned	PAETEC ITEL, LLC	829J	GREATBNGTN	MA
2004-10-22	413-888-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	CHICOPEE	MA
2004-10-12	413-387-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	NORTHAMPTN	MA
2004-10-12	413-652-3XXX	3000–3999	Assigned	OMNIPOINT MIAMI E LICENSE, LLC	6889	NORTHADAMS	MA
2004-10-06	413-320-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	NORTHAMPTN	MA
2004-10-06	413-464-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	PITTSFIELD	MA
2004-10-06	413-636-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SPRINGFLD	MA
2004-10-06	413-687-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	AMHERST	MA
2004-09-30	413-813-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WARE	MA
2004-09-30	413-813-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WARE	MA
2004-09-13	413-687-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	AMHERST	MA
2004-09-08	413-320-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NORTHAMPTN	MA
2004-09-08	413-652-0XXX	0000–0999	Assigned	OMNIPOINT MIAMI E LICENSE, LLC	6889	NORTHADAMS	MA
2004-09-03	413-464-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	PITTSFIELD	MA
2004-08-27	413-212-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PITTSFIELD	MA
2004-08-18	413-347-6XXX	6000–6999	Assigned	OMNIPOINT MIAMI E LICENSE, LLC	6889	PITTSFIELD	MA
2004-08-18	413-347-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	PITTSFIELD	MA
2004-08-17	413-349-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	HATFIELD	MA
2004-08-16	413-322-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	HOLYOKE	MA
2004-08-09	413-232-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	W STOCKBDG	MA
2004-08-09	413-239-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	NORTHFIELD	MA
2004-08-09	413-248-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	SHEFFIELD	MA
2004-08-09	413-251-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	HINSDALE	MA
2004-08-09	413-258-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	SANDISFLD	MA
2004-08-09	413-268-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	WILLIAMSBG	MA
2004-08-09	413-269-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	OTIS	MA
2004-08-09	413-274-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	HOUSATONIC	MA
2004-08-09	413-367-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	MONTAGUE	MA
2004-08-09	413-369-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	CONWAY	MA
2004-08-09	413-423-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	MILLERSFLS	MA
2004-08-09	413-424-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	MONROE BDG	MA
2004-08-09	413-471-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	CHESTERFLD	MA
2004-08-09	413-624-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	COLRAIN	MA
2004-08-09	413-625-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	SHELBUNFLS	MA
2004-08-09	413-667-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	HUNTINGTON	MA
2004-08-09	413-842-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	DALTON	MA
2004-08-09	413-863-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	TURNERSFLS	MA
2004-08-09	413-931-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	STOCKBDG	MA
2004-08-09	413-961-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	WORTHINGTN	MA
2004-08-05	413-623-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	BECKET	MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.